<!doctype html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <script type="text/javascript" src="http://libs.baidu.com/jquery/1.7.2/jquery.min.js"></script>

    <script src="http://api.map.baidu.com/api?v=2.0&ak=Dc8o3GUube9RVOhmeuuhfNL9QRyzhuaj" type="text/javascript"></script>
    <title>浏览器定位</title>
</head>
<body>
<div>
    <span id="load_geolocation">点击获取位置</span>
</div>
</body>
</html>
<script type="text/javascript">
    $(function(){
        $("#load_geolocation").click(function(ev){
            $(ev.currentTarget).text("正在获取位置......");
            //创建百度地图控件
            var geolocation = new BMap.Geolocation();
            geolocation.getCurrentPosition(function(r){
                if(this.getStatus() == BMAP_STATUS_SUCCESS){
                    //以指定的经度与纬度创建一个坐标点
                    var pt = new BMap.Point(r.point.lng,r.point.lat);
                    //创建一个地理位置解析器
                    var geoc = new BMap.Geocoder();
                    geoc.getLocation(pt, function(rs){//解析格式：城市，区县，街道
                        var addComp = rs.addressComponents;
                        $(ev.currentTarget).text(addComp.city + ", " + addComp.district + ", " + addComp.street);
                    });
                }
                else {
                    $(ev.currentTarget).text('定位失败');
                }
            },{enableHighAccuracy: true})//指示浏览器获取高精度的位置，默认false
        });
    });
</script>  